Koster-Sellen Glas Service

I am very satisfied with this company, they did an excellent job. We had many double-glazed windows replaced by HR++. They took all the time in advance to make an inventory and they thought along about the possibilities. The work itself was carried out as agreed and with minimal inconvenience. Very pleasant to deal with and delivered an excellent result. They also keep their agreements: when they say you will be called back, they really do. I can recommend this company to everyone! If we ever need to replace a window, I will definitely come back to them. Good price and good service by a top team.

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Koster Sellen Glas replaced 6 old double-glazed windows with HR++ windows in April. They did it quickly and very neatly, friendly and nice people, they work very neatly both inside and outside the house. They also replaced the bottom glazing bead of a window on the same facade so that everything looks the same. TOP TEAM.

Koster-Sellen replaced the bubble glass in 7 of our windows. With 3 people, a well-oiled machine, working neatly in and outside the home. And they had provided us with excellent advice in advance. We are very satisfied.

Koster-Sellen Glas Service replaced a framed window for us and it went very well. From the first contact, they provided expert advice, kept to agreements and worked neatly and professionally. The installation went smoothly, leaving no mess, and the end result is perfect. For a reliable and professional glazier in North Holland, I absolutely recommend Koster-Sellen Glas Service!